Duílio Júnior
| Personal information | |||
|---|---|---|---|
| Full name | Duílio Dias Júnior | ||
| Date of birth | 13 March 1957 | ||
| Place of birth | Curitiba, Brazil | ||
| Height | 1.80 m (5 ft 11 in) | ||
| Position(s) | Midfielder | ||
| Team information | |||
Current team  | Audax Rio (coach) | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) | 
| 1976–1980 | Coritiba | ||
| 1981 | Portuguesa | ||
| 1982 | America | ||
| 1983–1985 | Fluminense | ||
| 1985–1988 | Sporting | ||
| 1988–1991 | Estrela Amadora | ||
| 1991–1992 | Ovarense | ||
| 1992–1995 | Portimonense | ||
| Managerial career | |||
| 1998–2003 | Fluminense (interim) | ||
| 2004–2005 | Al Qadisiya | ||
| 2006–2007 | Kazakhmys | ||
| 2008 | Mesquita | ||
| 2011 | Serrano | ||
| 2011 | Nova Iguaçu | ||
| 2012 | Rio Branco | ||
| 2012 | America | ||
| 2015 | Rio Branco | ||
| 2017 | Bonsucesso | ||
| 2017 | Americano | ||
| 2018 | America | ||
| 2018– | Audax Rio | ||
| *Club domestic league appearances and goals | |||
Duílio Dias Júnior or simply Duílio (born 13 March 1957) is a Brazilian retired footballer who played as a midfielder, and the current manager.